While several states have recently limited the ability for teacher unions to collectively bargain for their members, teachers will continue to flex their political muscle in a way scholars of policymaking have overlooked: through their pocketbooks.

In the search for superconductors, finding ways to compress hydrogen into a metal has been a point of focus ever since scientists predicted many years ago that electricity would flow, uninhibited, through such a material.

A United Nations report released Tuesday calls for fast action on reducing emissions of black carbon, ground level ozone and methane to help limit near term global temperature rise preventing the Earth from overheating.